Impreza Wagon FWD F4-1820cc 1.8L SOHC (1995)
Heater Core: Service and Repair
Heater Core
1. Disconnect battery ground cable.
2. Disconnect inlet and outlet heater hoses in engine compartment. Drain as much coolant as possible from heater unit and plug disconnected hoses.
3. Disconnect heater control and mode door cables, then vacuum hose from heater unit joint as equipped.
4. Remove instrument panel as outlined under Insturment Panel, Gauges and Warning Indicators.
5. Remove steering column support beam.
6. Remove evaporator as outlined under Evaporator Core.
7. Remove heater unit.
8. Remove heater core from heater unit.
9. Reverse procedure to install, noting the following:
a. Fitted length of heater hose to pipe is .99-1.18 inch.
b. Torque heater unit attaching bolts to 4.0-6.9 ft. lbs.